Grails Consuming JSON response.

Question

I'm trying to create a restful service and I'm trying to consume my JSON response and convert it back to an Object.

Controller method

def mergeVendors(String region) {

    def report = new VendorReport();
    //do something with  report

    response.status = 201
    response ([vendorReport: report]) as JSON
}

Test Method

void "Test Merge Vendors"() {
    when:       
    controller.request.method = 'POST'
    controller.request.json = '[{id:1, zip:"14224"}]'

    controller.mergeVendors("Florida")

    def response =  controller.response


    then:
    response.zip == "14224"
}

The code above is what I'm trying to use and I get the following exception. How do I cast the response back to a VendorReport obj?

groovy.lang.MissingMethodException: No signature of method: org.healthresearch.VendorController.response() is applicable for argument types: (java.util.LinkedHashMap) values: [[vendorReport:org.vendor.VendorReport@1b0dbdf1]] Possible solutions: respond(java.lang.Object), getResponse(), respond(java.lang.Object, java.util.Map), respond(java.util.Map, java.lang.Object), respondsTo(java.lang.String), respondsTo(java.lang.String, [Ljava.lang.Object;)

zfChaos · Accepted Answer · 2016-12-09 21:21:50Z

3

response ([vendorReport: report]) as JSON

change to

render ([vendorReport: report]) as JSON

answered Dec 9, 2016 at 21:21

zfChaos

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4 Comments

Code Junkie Over a year ago

What do I need to do to cast the json back to a VendorReport object in my test?

zfChaos Over a year ago

then: response.json == report

Code Junkie Over a year ago

then: def response = controller.response.json; response == report Test Merge Vendors(org.VendorControllerIntegrationSpec) | org.codehaus.groovy.grails.web.converters.exceptions.ConverterException: Error parsing JSON at grails.converters.JSON.parse(JSON.java:278) at org.VendorControllerIntegrationSpec.Test Merge Vendors(VendorControllerIntegrationSpec.groovy:32) Caused by: org.codehaus.groovy.grails.web.json.JSONException: Expected a ',' or ']' at character 16 of ['vendorReport':org.vendor.VendorReport@1e5c61e6] at grails.converters.JSON.parse(JSON.java:269) ... 1 more

zfChaos Over a year ago

I don't know the structure of your VendorReport class. You might need a GSP template to generate proper JSON. Debug your app, check if your JSON is valid.

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