Jq filter array by key. The funny thing is that it is seems not consistent.

Jq filter array by key My example has two subnets. When you use the filter . jq filter out specific pattern. json | jq Actually, calling jq without any argument/path is a shortcut for the identity filter use with_entries to convert to/from an intermediate format that represents that data as an array of objects with key and value elements: cat people. Could you share another example of having multiple dependecies i. Popularity 10/10 Helpfulness 1/10 Language shell. filter json using jq and get entire other value. []] ] | transpose ) + [ . How can i use jq to filter the result the way it returns only elements that do Very simple but beginning with jq. Ex. Then you'll have to do a fair amount of manipulation: Each of the objects needs to be mapped out to key/value pairs; Flatten the pairs to a single array I have an array and I need to check if elements exists in that array or to get that element from the array using jq, fruit. name' file rhel6. payload. The funny thing is that it is seems not consistent. genre | contains("house")))' [{"genre":"deep house"},{"genre":"progressive house"}] map unpacks the input array, applies the filter to every The ordering for objects is a little complex: first they're compared by comparing their sets of keys (as arrays in sorted order), and if their keys are equal then the values are compared key by We will focus on three key operations: filtering, mapping, and reducing. filter an object based on properties of its values. Modified 2 years, You need to combine filters by means of | operator: $ jq -r '. kw)[] | The |= takes all the paths matched by . 46. how to select the json objects between given dates. cat data. Tags: filter jq key shell. Filtering allows you to select elements from an array based on a certain condition. Add a comment | Here is an example using "array-style" path notation, However, when i add the negation jq '. jq - Filtering JSON array if does not contains not working. 2. jq filter items where values in a nested array array are different. Using jq to convert object to key with values. For example, if I were to include another property in the initial object creation, like created_at, this method would fail as not all of the properties would be equal. key] | add' input. We will focus on three key operations: filtering, mapping, and reducing. On AWS Linux. 5. I need to change the value of a set of keys (defined in a variable) in a JSON object using jq. foo)' Convert an object to array: to_entries &#124; map([. How to filter an array of objects based on value of a element in the Json in JQ. Ask Question Asked 27 days ago. jq - select and filter only certain objects from the array. text | tostring | select This one was incorrect because of after . I'm also on the cat file. report. Json JQ Filter with Wildcard in Bash. filter and Array. 42. This means the output would be: { "names": [{ "name": "Jackson Longfellow" }] } The length filter only seems to count items in an array. key == "_id" and . updateDate//empty part means: if . jq - filtering JSON by searching key values. json where data. json jq How to filter array object does not contains Key with case insensitively? 9. As Will pointed out in the comments, this isn't quite correct. Since both operations take place inside an array [. g. Note that the below notation of bash arrays will not take , as a separator in its definition. Query. Source: Grepper. You could map those pairs to the items you wanted. has_parking_space. Filter an array of objects based on value of inner object equaling value of outer object. json 12 abc 73707802 32 cde 73707802 99 xyz 73707802 Parse JSON Elements in Array with jq. Below is the input and desired output. each "attributes" array, and applies the filter sort_by(. jq - Selecting objects containing certain key. 90. firstName are taken. Hot Network Questions Then we iterate over this array by using map and select all entries where the . Hot Network Questions Passing any kind of JSON to jq without any additional configuration will prettify the JSON so it’s easier to read and understand. I'd like to use jq to filter only the records whose ids are mentioned in the text file. Filter empty and/or null values with jq. items | contains(["blue"])) This has the added benefit that it would work if you wanted items with more than one match by simply adding more to the array. At the least, it would be appropriate to acknowledge Jeff's efforts. Filtering one key with the value from another key in jq. var arr = Filter array of objects on key from array of values JavaScript. key), \(. vca -j gateway | jq --raw-output '. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company This may already be possible but I cannot figure out how to do it, I have an array of objects and I would like to filter out the objects that dont have a key containing a certain string and display the ones that do. Each has keys with numbers in quotes. value | . As you become more comfortable with the basics of jq arrays, it’s time to explore more complex operations. Strings are compared using substring matching (contains is used recursively) here. Is it possible to perform a unique but control how the comparison is performed? Explanation. ] - Create new json object {} {key1: . Print the JSON object in an array where the object key is equal to the specified value with jq: to_entries takes an object and returns an array of key/value pairs. You may print "one value per line" with just | . As example, I have this JSON object: { foo: { bar: 1, baz: 2, qux: 3 } } “Data is the key”: Twilio’s Head of R&D on the need for good data. Delete a key: jq 'del(. filter(function (item) { return true // mean the item included in filtered result return false // mean the item not included in filtered result }) The ordering for objects is a little complex: first they're compared by comparing their sets of keys (as arrays in sorted order), and if their keys are equal then the values are compared key by key. tag field may contain multiple tags and the desired one can be at any position | select(. jq: how to filter by field value in array of objects? Hot Network Questions This solution requires both arrays to be passed to jq seperately. Follow FIltering by value in jq while building Unlike objects made using {}, arrays have no keys; they are just simple lists of values. chrom, . For example, 2 exists in keys "18" and "28", and 7 exists only exists in jq -r --arg metric "cocekop:count" ' [ "id", "name", $metric ], ( ( [ . data[] | select(. Here, we pipe the array of objects associated with the . Provided function is a callback which is applied to each element of the array. [] | keys[] For example, with the input as shown in the question: $ jq '. name,keys < filter. Yes, the lookup array will need to be flipped once, but because PHP is very fast about making key lookups (such as isset()), I expect in_array() to be left in the dust in the majority of test cases. By default jq run the filter for each JSON I'd like to make a jq query that returns the key/keys of the object with the array that contains a given value. I know how to select the array: jq . json filtering with ignoring some objects. Here is the jq filter I use to provide an array of objects, each consisting of an agent name followed by an array of names of the agent's vulnerable packages: Combining JSON arrays with the same key value pair with jq. gateways you should always quote the filter, something the OP did not do BTW, not sure if it makes a difference, but I am concatenating this command to populate the gateways array (e. | jq -s 'sort_by(. But I am having trouble working out a succinct jq I am trying to filter my aws ec2 instances by its Tag Key. – Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site The accepted answer also produces null for every object that doesn't have the key. 0 Answers Avg Quality 2 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog Given an input json string of keys from an array, return an object with only the entries that had keys in the original object and in the input array. I managed to create a working filter for the root keys: host:~ user$ jq -r '. How to filter missing inner key by using jq. I can get 1 key and 4 nulls or 4 keys and 1 null, but not all 5 keys. to filter out keys whose values are something other than simple values or one-dimensional JSONArrays of simple values, continue; vars[${item%%=*}]=${item#*=}; done < <(jq ) to populate an array. key1, . JQ: Filtering for keys. } - Create new json object. For example, need to search for state key and name where one of the zipcodes is 73707802. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Filter keys that start with Test and get only the attribute of your choice using the select() expression. How to filter based on value in json using JQ. In this example, we’re using the sort function in jq to sort a simple JSON array. If I want to traverse down to a level which has a particular "path" of name properties, how would I formulate the jq filter?. json JQ: Select objects with key's value in set of values. 0 I'm trying to figure out how to remove an array element from some JSON using jq. What worked for me was: jq '. – Any answer that leverages iterated calls of in_array() will not be more efficient than the more elegant call of array_intersect_key(). json is a bit more readable than <file. Related. Trying to filter an array output with jq. 1 How to filter keys by name, then access nested object using jq. I'll add that while not relevant to your particular example data, in some cases it might also be useful to do sort_by(. p|keys', and the structure and keys on the second level with jq '. We pass the array ‘[3, 1, 2]’ to jq, and it returns the sorted array ‘[1, 2, 3]’. jq --arg mx 2000 -f filter. [] | {"rs": . Visit Stack Exchange In this example, we’re first using jq ‘select’ to filter the data, then jq ‘map’ to transform the filtered data into a new array. key1, key2: . So, for example, in the snippet (from one of the answers, below) . txt into a JSON array. chrom, "pos":. Next, select(. 1. ceving. "External IPs Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I have an array "operations" from which I would like to return all the elements that contain a matching string like "w51". repositories[]. Modified 27 days ago. jq '. If I have an array ("a_key" "key_to_filter") - how to tell jq to filter all the keys in this array? For example, here I'll just get c_key – Yoni Melki. This is my JSON: { "name": jq 'del(. 8k 14 14 gold badges 116 116 silver badges 195 195 bronze badges. It is a array of maps (key is service name, value is array of its dependencies). I have a solution but I think that it isn't el @jrow - A better solution would probably be possible if you showed a representative snippet of the output of the gcloud command, before applying the jq filter. I want to get the result that ec2 instance does not have specific Key(in my example, it is env or appname) Filter array with jq based on nested values. file. accounts[] | [. Parse an array of json object This works well, but I'm wondering if there's a better way of performing the dedupe/unique step. JQ filter returns 'false' when key jq filter JSON array based on value in list. KeY2="123"' test. Thank you! – The following would be suitable if you want a solution that simply "edits" the original document, retaining any other keys that the top-level object might have: Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site This is not sorted. operations[]' < file to retrieve the elements. Ask Question Asked 8 years, 3 months ago. jq proposes an option, --slurp (long option), -s (short option) to read the entire input stream into a large array and run the filter just once. What you're seeing in the end is each of the individual results, one after the other. On Mac OS. How to filter nested arrays in JSON while maintaining structure using jq. That could be done in this case using the -s command-line option; if your jq has the inputs filter, then it can also be done using that filter in conjunction with the -n option. 30. zk_kafka But I do not know how to filter the array of object by a property value. I am using jq '. jq - filter array does not contain. ] and also the leading . For jmespath. I am trying to do something similar to this, but encountering all kinds of errors. Body[] array which do not have . For example: #!/bin/bash -e In general and invoking a separate jq command, you have to use -s, --slurp that will make these sequential objects an array, and then you can sort it by a key. JQ get unique objects and arrays based on key value. [3]. 11. So just do. I am trying to make a filter using jq to filter the arrays in this json to get only the arrays that have "policy_id": 199383 and exclude the arrays that contain different policy_id get a specific value in json when other key value pair matches. firstName are stored in this array. You need to use filter method on the array, the filter method takes 1 argument which a function run on each item to decide should the item included in filtered result. More simply, isset() has been proven time and time wrapping into object to maintain structure/key names is great, just what I am looking for – cryanbhu. tags[]. 23. json If you want the keys sorted alphanumerically, you can use: That |= thing strikes me as the key here. Array[] | select(. link[]. JQ Select Objects Where Inner Key Exists. GitHub Gist: instantly share code, notes, and snippets. jq 'to_entries[] | select(. json: { "fruit": [ "apple If you need to filter the array of fruit against another array of fruit, you could do something How to check for presence of 'key' in jq before iterating over the values. This is not valid JSON array. How to Select only a couple keys and keep it in an array format using jq. (Of course, to be properly paranoid one wants to make sure neither key nor value contains a NUL, keys produces the key names in sorted order; if you want them in the original order, use keys_unsorted. Array but in general you can use a more sophisticated filter as the argument to del. How do I check for the presence of . a1, . Hot Network Questions How to Modify 7447 IC Output to Improve 6 and 9 Display on a 7-Segment I need to filter an array if a key meets a certain value, for example: data = theArray; var theColumn = "thc012"; var theVal = 4; data = $. Using the below array I call jq to find the value "FooBar" of a key "text": jq '. key|startswith("ext"), . pos, "a1": . value | type Using the command aws resourcegroupstaggingapi get-resources --profile (profile_name) returns an array of JSON object with the Resource ARNs value and their tags (another array of JSON of objects w @Bruno9779, welcome, @tsv will transform an array of values into string of tab-separated items. How filter json file with jq Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I'm trying to delete all entries that do not have any dependencies, but as I don't know jq very well, I'm having a problem with finding the answer. brew install jq. key | startswith(“name”)) filters the key-value pairs, and selects only those where the key starts with the string $ cat test | jq 'to_entries | . The array is then sorted with the sort jq how to filter by value; jq filter array; jq filter by key Comment . jq: how to filter nested keys? 1. I guess jq will linerarly (?) search the second array for each element of the first array. json 6. For example, to retrieve specific elements based on a condition: jq '[. Here is some sample JSON data that represents a file system's directory structure: Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company This is close to this question: jq filter JSON array based on value in list, the only difference being the condition. jq stackover. Select all keys in sub-sub objects. · --raw-output / -r: With this option, if the filter´s result is a string then it will be written directly to standard output rather than being formatted as a JSON string with quotes. value]) Dealing with fields. Commented Nov 25, 2024 at 5:29. Just as a note, it seems in my exploration of a similar question that requires string inputs is referring to the pipeline of data in jq, rather than (as I at first interpreted it, and maybe you and/or others did or will too) the argument "ext", which certainly seems like a string. 291. Body[] array The original tag for this question was jq so here is a jq solution:. Commented Oct 22, 2020 at 7:57. Thanks, for mentioned mistake. to_entries maps the root object into an array of objects with key and value fields corresponding to the fields of the original object. json "on" Here the filter walks through 2 keys. name) to each of them, leaving everything else unchanged. – Maxim Suslov. – mariotti. ip)"' CSV and TSV output. You might want to filter the key by strings (or convert to strings) beforehand to account for arrays in your tree. So 'map' function is unnecessary. [], you are actually breaking the array result into separate results for each of the items. [] you are working with each item separately, not with array. In that case, use this: Or rather, invoking jq with this filter will emit the updated JSON. Add a comment | jq: how to filter an array of objects based on values in an inner array? 244. I then want to return the length of this filtered array. alleles | keys. name value. To ensure they are kept as an array, you can put the results back into an array by wrapping your filter with square brackets: jq filter items where values in a nested array array are different Hot Network Questions Does the US President have authority to rename a geographic feature outside the US? A possible jq program to accomplish your goal: # Embed the final result into an array to get a valid JSON output [ # Convert the input object into a list of { key, value } objects to_entries[] # Keep only the objects that contain the desired tag # The . jq add element to each object inside array of objects. is_shop and location. I build this JSON using . – peak Commented Dec 23, 2020 at 21:17 This can be used e. sort_by may be used to sort by a particular field of an object, or by applying any jq filter. This is just a basic way to use the sort function in jq, but there’s much Filter in jq based on an array of string. id | index( "red" ) | not)' the results are more than strange, with elements' duplication, totally enigmatic. Thanks With the following JSON, how do I write a script using JQ to filter for a regex where i want the result to be only Address's with numbers as the first character. jq --slurp --compact-output '[ group_by(. $ jq -r --arg zip 73707802 -f filter. if the list contains "00001", only the first one The trick is to convert ids. groups[0][] | [. Commented Nov 17, 2023 at 10:53. Featured on Meta Trying to filter an array output with jq. children[] | select( to_entries[] | . some_query_identifier|tonumber)-- to sort numerically by whatever field (. Link to this answer Share Copy Link . e. jq . Using the data below I cannot make a flat 5 key output. You can use a combination of jq and shell tricks using arrays to produce the filter. { "arrayOfStuff": [ { The ordering for objects is a little complex: first they're compared by comparing their sets of keys (as arrays in sorted order), and if their keys are equal then the values are compared key by key. Filtering allows you to select To get the keys in the order they appear in the original JSON use: jq 'keys_unsorted' file. JSON parse with jq and filter. parent_id (just as you did before) – RomanPerekhrest I would like to report anyway funny behaviour: the order of the key is not preserved, if you just filter from file to file. how to use jq to filter an object based on it's key:value pair? 0. Unless your jq has inputs, you will have to slurp the objects up using the -s flag. id ) | unique[] I have a JSON content as embedded in this link jq-play. Note the nested object structure of the JSON, which is intentional. webServerName key present - this condition should leave only the object #2 inside the . What I have is an array of object. Each input array will be printed as a single line. property_history is not present in result object. id]' I need to delete multiple keys at once from some JSON (using jq), . Now we need to produce a regex filter to match the string, so we produce an alternation operator JQ: Filtering for keys. Then you could pass those paths to be removed to delpaths/1. id If there is any possibility of duplicate . If you have a version of jq with inputs (which is available in jq jq . foo), so the results are shown in the sorted order of the field. foo) internally does a sort(. [1:] | join(",") } | [. Unix jq parsing wildcards. updateDate//empty' The . json contains your data and query. JQ: Removing null values from a JSON array in jq. I get Cannot iterate over null (null) from the below query because . The first has "TheName" in the wrong key. key. How do I filter a JSON output using jq with a Here is a variation using reduce, setpath and getpath to do the aggregation and to_entries to do the final formatting which assumes you run jq as. Then he uses the filter function on the data. filter a key with value $ jq '. Creating simple arrays is crucial, however, for mapping our JSON into a CSV file. JQ does not contain for "key": "value" JSON structure. The output of this filter, which is the individual object, is passed through a pipe and the values associated with their . Hot Network Questions Can you find a grand tour of the rooms in this 12x12 grid? If you mean more json transformations you can simply add more filters to your jq expression. key|startswith("Task")). json. id values, then the following could be used to ensure only distinct values are emitted: map( select(. records array. map({ Address: . How to filter an array of JSON objects with jq? 1. pos, . If you append [] at works as well. Delete objects and arrays with jq which match a key. In fact, jq will only output one of the elements then. jq contains I am provided two JSON arrays from database fields. JSON parse with I'm trying to filter properties of an object in jmespath based on the value of a subproperty and want to There are custom built-in functions for this purpose in different tools like to_entries in jq. p|map(. value jq is useful to slice, filter, map and transform structured json data. I'm looking for JQ query that allows me to merge 2 arrays variables (not files) and also take me to overwrite first array with newer value from second array. | keys[] | endswith("/")' <<< "${json_data}" false false false true true false and I can use that filter to get only the wanted keys, but that is the keys alone and not the entire data structures underneath them: Would you mind explaining how the reduce part works? I see what happens: it makes an object whose keys are "alice" and "bob" and the values of those keys are arrays filled with objects that have the corresponding . E. key, . Just a blog about every detail encountered. firstName], the values of . The key functions here are Array. tag | contains(["python Since you're just checking the start of the keys, you could use startswith/1 instead in this case, otherwise you could use test/1 or test/2. In this response, I'll show how to avoid any sorting by using a generic (and generally useful) jq function that "melds" an array of JSON objects, essentially by popping the value at each key into an array, and then concatenating corresponding arrays. gateways[0]. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company The filter() method creates a new array with all elements that pass the test implemented by the provided function. Commented Jan 25, 2023 at 11:45. In the case of arrays, it effectively makes index/value pairs. debug' example2. Follow answered Jan 5, 2022 at 12:40. Benjamin How do i get the following output using jq filter . . How to group by in jq? 0. jq includes every element of the second array in its output, if it exists in the first array. This can be useful for making jq filters talk to non-JSON Using jq, how do I select a parent object if it contains a child object that meets two filter requirements? In this example I want to select all Subnets elements that have a child tag with key "Name" and value "TheName". Until now, all the samples I have found dealt with key value pairs. I want jq to return the index of an alement in an array based on a search. My json file is called my_locations. This of course wouldn't work if you expect your key to have values of false or null. Installing jq. key2, . [] | keys[]' input. name, . key is Assuming the input is valid JSON, the following jq program will yield an array of the distinct names: map(. Just enclose the operation within [. [] | select(. Use saved searches to filter your results more quickly. I am using aws-cli and jq, and so far things have been great. how to sort case insensitive using jq. Filter value contained in array in jq. jq --slurp -f query. subobject {label, region, etc})' somehow filtering the nested listed objects inside the subobject in the sublist? – NeilG. And the pipe character between select() and . How to filter an array of json with jq in linux? 0. address }) how do i add to this to filter for the regex expression I want (which is \A[0-9]) Stack Exchange Network. jq: filter nested array objects. I have been tinkering with jq and trying to find the right way to resolve this I am writing some bash scripts to help automate the management of AWS resources. I am tagging my resources with custom tags. jq: how to filter an array of objects based on values in an inner array? 448. See jq Manual - group_by(path_expression). In jq, arrays sort by the sorting of the elements they contain, in order. Commented Append to an array of a nested element in jq but return root object. filter(data, theColumn, theVal ); And then the result would be all the array items that match theColumn = theVal ; I am already using the jQuery Library so if any jQuery functions help, use them. Filtering Arrays. 4. } or {key1, key2, . JQ sorting key by arbitrary order. – karatedog Maps and Selects Using JQ. How to filter Supabase JSONB with Bash. How to print specific object keys using jq? 1. Share . Novice jq user here, struggling with the following: I have the following json and need to filter keys based on a keyword and print out the whole object (not just the key) or certain key/value pairs. some_query_identifier in your case, but those weren't jq - filtering JSON by searching key values. Thinking of newbies cat file. 1 key, 4 nulls:. jq; Share. With the above assumption about quotation marks, this can be done by: jq -R JQ: Filtering for keys. Below is a sample, showing the first object: Notice that in jq, not is a 0-ary filter -- it has no argument. Improve this question. if you want to keep more than one key/value combination, you can make it a list in the curly braces like jq '. Follow answered May 29, 2019 at 11:24. jq filter query based on inner array items. – I want to use jq to delete all objects from an array whose key does not correspond to a defined value. How to filter a key using jq in bash. To create a CSV table with jq we How to filter an array of JSON objects with jq? 0. Select a dict from a list where one value does not matches another with jq. But how does it select only the objects with "alice" to go with the "alice" key? That is eluding me. Follow Sort descending by multiple keys in jq. JQ: Select multiple conditions. Name. [keys[] | select(IN("a", "b", "z") | not)]) I have an array of JSON objects and I need to delete a field based on it's name and it's type. M2, M3? jq: how to filter an array of objects based on values in an inner array? 0. The text was updated successfully, jq ' del(. For example, if you How to filter array of objects by element property values using jq? 20. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I can get the list of keys on the first level under "p" with jq '. Firstly to produce the shell array, use an array notation from the shell as below. While these advanced techniques can be incredibly powerful, they also require a good understanding How do I filter using jq which contains string "edp-api-dev" { "serviceArns": [ "arn:aws: ecs:us-east-1:1234:service/splat-dev How to filter using jq array of strings which contains a specific value. []. json Yet it gives me faulty output of: "Horst" "Bob" [ "123", "789" ] keys based on value of an element in an object in the aforementioned array in jq? 1. The issues list I was looking at has many low-quality issues in it. jq to filter inner array elements but return the whole JSON. I want to filter this array by all objects that have keys location. foobar2 == "barfoo2 In this array there are many different objects with many different owners, and I want to return an array that only contains the id (first property of the object) IF the owner property is 12345. Filtering JSON using jq with a condition. Filtering elements in an array is one of JQ’s most powerful features. Using jq to fetch key value from json output. Improve this answer. Follow edited Mar 11, 2024 at 18:21. Job == "Clown"))' I'm using the application jq to filter json files from the command line. jq < data. Another alternative, which produces keys in the original order, is: jq -r 'to_entries[] | "\(. key - Value of the key [] [] - Select array, [n] - Select nth element in the array, [. const filtered = array. filter keys in JSON using jq. Find index of element with jq. The @csv and @tsv filters might also be worth considering here, e. Filtering objects in jq by existence of nested array values. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. I. jq filter JSON array based on value in list. A few of the keys in the objects are arrays as well, but I'll be discarding most of those anyway. jq --raw-output . I don't want equality as a condition, but a "contains", but I am struggling to do it correctly. metrics[$metric] ] | transpose[] ) | @csv' file Or, if you like one-liners: Google taught me about jq's contains that seems to be the answer on some-sort-of related question; How to filter an array of objects based on values in an inner array with jq? filter on "string contains" Print array element if it contains; Unfortunately I can't manage to make it work with my situation, since using select seems unnecessary. Contributed on Apr 21 2021 . The second subnet has the name/value pair I am looking for. Array whose . If you mean external processing then you'll probably need another program or script to do that for you and if it isn't able to process json you may have to do a little more on the jq side to adapt the output into something it can consume. Compound conditions. [] |= with_entries(if . key, "chrom":. That is not quite correct, group_by(. key (now a string) If at least two keys are identical, you will run into problems, because keys should be unique. json "identifier1" "identifier2" To retrieve the key names in the order they Your implementation suggests you have made some incorrect assumptions about how arrays are implemented in jq. this filter removes the elements within . $ echo "$json" | jq -c 'map(select(. Share. json and contains an array called locations. Here is my attempt using the program jq: Match first object which has an array that contains exactly same values (it's should always be length of 2) Example: Match object with array key to exact values using jq. How to As @JeffMercado pointed out, jq handles streams of JSON just fine, but if you use group_by, then you'd have to ensure its input is an array. isSparse == true) | . How can you sort a JSON object I'm trying to figure out how jq filters work and having trouble figuring out nested arrays. 9. is optional. name) | unique Get unique JSON keys with JQ in raw format. jq - If the task is to "print the IDs of all entries in the array that have isSparse == true", an appropriate jq filter would be:. key != "filter"))' Demo. That is: $ jq -n '[1, 2] < [1, 3], [1, 2] < [2, 1]' true true The sort_by filter sorts an array, taking an expression as argument that will be evaluated for each member of the array. I can easily extract values for most of the keys. json; jq; Share. records array and says "remove all items that do not have an ID matching one of those in the temporary array", and reassigns this to the data. By default jq run the filter for each JSON object in the input. |keys)', but I can't figure out how to combine it. [] | . date)' Now, if you have a selection already and you want that result to be an array, then I guess wrapping it all with brackets will make it: besides the outer square brackets are kind of unnecessary (it just makes the whole output an array like the input is), as in @x-yuri's comment shown, the filter can be shortened to only {name}. updateDate is null (or false), skip it entirely. 3. Reservations[] | {OwnerId, InstanceId, ImageId, PrivateIpAddress, Platform} Returns: The drawback of a solution relying on group_by is that group_by requires a sort, which is unnecessary here. [] filter. Is there some other built-in filter to use for this? Filtering Arrays. Ilkiv Yuriy Ilkiv JQ filter returns 'false' when key is not hardcoded. attributes. 6 rhel7 Share. py and thus for Ansible there I need to apply several filters and leave in the . alleles | keys | . array[]. a2] | In this tutorial, we covered various jq filters to jq filter json data, including prettification, filtering arrays and objects, using select() and map() for conditional selection and . Use jq to get parent key for a selected object. So if I search for 73707802, it should ret Skip to main content. Body[] array objects according to different criteria: Only select these objects in the . how to use jq to filter an object based on it's key:value pair? Hot Network Questions Nonlinear Gear rotation and translation: how to design gear system? The Honest, The Liar, And The Elusive I to_entries converts the top-level object to an array of objects with a "key" and a "value" attribute each to filter out individual elements, and it can even be combined with the attribute filter . Modified 3 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Some people may find the following jq program more useful for identifying keys with null or empty string values: jq filter for object with target value or key is not exist. |objects|. 6. This would let me skip all the drive-by fix-my-problem issues. [0], "a2": . json | jq 'with_entries(select(. widget. jq: how to filter nested I have a nested JSON object where each level has the same property key and what distinguishes each level is a property called name. json; bash; amazon-web-services; jq; aws-cli; Share. students key into the . jq: how to query for array values that don't contain text "foo"? 0. 0. json side as mostly that file. I have: { "dev": { "Alpha&qu It's basically one flat array of objects. 10. jq data. attributes, i. Get unique nested JSON keys with JQ. Follow edited Sep 6, 2017 at 11:02. foobar2 key is "barfoo2": del( . Hot Network Questions Mix and filtering a nested array with jq. jq grab keys from array of objects. But, is there a way to use the key filter with case unsensitive and make this command works : jq '. [] You want to look at the repositories array instead of treating the input as an array: $ jq -r '. The problem: If want to filter elements of an input file based on the presence of a specific value in an entry The input file: It could be useful to have a "value contained in array" filter; It could be useful to have a "pick the following keys from an object" filter; What do you think? Thank you for your time. id as the . Application : webserver. json is a mock and when the script goes live, it will replaced by the real data source that might contain cleanup and filter commands all piped together and that jq is just the last part of a bigger equation. jq get unique value from two keys. property_history key before proceeding with JQ to filter JSON by value. date/numeric filter with jq. Output a CSV: @csv. json jq proposes an option, --slurp (long option), -s (short option) to read the entire input stream into a large array and run the filter just once. processid' json Share. Ask Question Asked 3 years, 9 months ago. 6 Let’s say I want to grab all the items that are labeled. Hot Network Questions JQ: Filtering for keys. key in jq "to_entries[] | select(. We filter that to retain only those which have a key starting with "us_cell_", map it further to keep only the ip ranges and finally merge those arrays together. So far I have | jq -r '. n ∉ [0, ∞), int. [] | {name, group}' (in this case i'm just keeping the filter before the Consider using this filter instead: select(. Here’s an example of filtering an array to select only the elements Here, we use the to_entries[] function to convert each object in the array into an array of key-value pairs. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I'd like to use jq to select all the items where the length of the name is > 10 characters. In certain circumstances I would like to filter a list of resources based on both Key and Value of the custom tag. arr[] | . Thanks for this! Glad you found an answer, and now I have one, too. value. How to filter an array of JSON objects with jq? 3. includes. 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