|
| 1 | +import json |
| 2 | + |
| 3 | +from flask import Flask, make_response, jsonify, Response |
| 4 | + |
| 5 | +app = Flask(__name__) |
| 6 | + |
| 7 | + |
| 8 | +@app.route("/html1") |
| 9 | +def html1(): |
| 10 | + return "<h1>hello</h1>" |
| 11 | + |
| 12 | + |
| 13 | +@app.route("/html2") |
| 14 | +def html2(): |
| 15 | + # note that response saved in a variable intentionally -- we wan the annotations to |
| 16 | + # show that we recognize the response creation, and not the return (hopefully). (and |
| 17 | + # do the same in the following of the file) |
| 18 | + resp = make_response("<h1>hello</h1>") |
| 19 | + return resp |
| 20 | + |
| 21 | + |
| 22 | +@app.route("/html3") |
| 23 | +def html3(): |
| 24 | + resp = app.make_response("<h1>hello</h1>") |
| 25 | + return resp |
| 26 | + |
| 27 | + |
| 28 | +# TODO: Create test-cases for the many ways that `make_response` can be used |
| 29 | +# https://flask.palletsprojects.com/en/1.1.x/api/#flask.Flask.make_response |
| 30 | + |
| 31 | + |
| 32 | +@app.route("/html4") |
| 33 | +def html4(): |
| 34 | + resp = Response("<h1>hello</h1>") |
| 35 | + return resp |
| 36 | + |
| 37 | + |
| 38 | +@app.route("/html5") |
| 39 | +def html5(): |
| 40 | + # note: flask.Flask.response_class is set to `flask.Response` by default. |
| 41 | + # it can be overridden, but we don't try to handle that right now. |
| 42 | + resp = Flask.response_class("<h1>hello</h1>") |
| 43 | + return resp |
| 44 | + |
| 45 | + |
| 46 | +@app.route("/html6") |
| 47 | +def html6(): |
| 48 | + # note: app.response_class (flask.Flask.response_class) is set to `flask.Response` by default. |
| 49 | + # it can be overridden, but we don't try to handle that right now. |
| 50 | + resp = app.response_class("<h1>hello</h1>") |
| 51 | + return resp |
| 52 | + |
| 53 | + |
| 54 | +@app.route("/jsonify") |
| 55 | +def jsonify_route(): |
| 56 | + data = {"foo": "bar"} |
| 57 | + response = jsonify(data) |
| 58 | + return response |
| 59 | + |
| 60 | + |
| 61 | +################################################################################ |
| 62 | +# Setting content-type manually |
| 63 | +################################################################################ |
| 64 | + |
| 65 | + |
| 66 | +@app.route("/content-type/response-modification1") |
| 67 | +def response_modification1(): |
| 68 | + resp = make_response("<h1>hello</h1>") |
| 69 | + resp.content_type = "text/plain" |
| 70 | + return resp |
| 71 | + |
| 72 | + |
| 73 | +@app.route("/content-type/response-modification2") |
| 74 | +def response_modification2(): |
| 75 | + resp = make_response("<h1>hello</h1>") |
| 76 | + resp.headers["content-type"] = "text/plain" |
| 77 | + return resp |
| 78 | + |
| 79 | + |
| 80 | +# Exploration of mimetype/content_type/headers arguments to `app.response_class` -- things can get tricky |
| 81 | +# see https://werkzeug.palletsprojects.com/en/1.0.x/wrappers/#werkzeug.wrappers.Response |
| 82 | + |
| 83 | + |
| 84 | +@app.route("/content-type/Response1") |
| 85 | +def Response1(): |
| 86 | + resp = Response("<h1>hello</h1>", mimetype="text/plain") |
| 87 | + return resp |
| 88 | + |
| 89 | + |
| 90 | +@app.route("/content-type/Response2") |
| 91 | +def Response2(): |
| 92 | + resp = Response("<h1>hello</h1>", content_type="text/plain; charset=utf-8") |
| 93 | + return resp |
| 94 | + |
| 95 | + |
| 96 | +@app.route("/content-type/Response3") |
| 97 | +def Response3(): |
| 98 | + # content_type argument takes priority (and result is text/plain) |
| 99 | + resp = Response("<h1>hello</h1>", content_type="text/plain; charset=utf-8", mimetype="text/html") |
| 100 | + return resp |
| 101 | + |
| 102 | + |
| 103 | +@app.route("/content-type/Response4") |
| 104 | +def Response4(): |
| 105 | + # note: capitalization of Content-Type does not matter |
| 106 | + resp = Response("<h1>hello</h1>", headers={"Content-TYPE": "text/plain"}) |
| 107 | + return resp |
| 108 | + |
| 109 | + |
| 110 | +@app.route("/content-type/Response5") |
| 111 | +def Response5(): |
| 112 | + # content_type argument takes priority (and result is text/plain) |
| 113 | + # note: capitalization of Content-Type does not matter |
| 114 | + resp = Response("<h1>hello</h1>", headers={"Content-TYPE": "text/html"}, content_type="text/plain; charset=utf-8") |
| 115 | + return resp |
| 116 | + |
| 117 | + |
| 118 | +@app.route("/content-type/Flask-response-class") |
| 119 | +def Flask_response_class(): |
| 120 | + # note: flask.Flask.response_class is set to `flask.Response` by default. |
| 121 | + # it can be overridden, but we don't try to handle that right now. |
| 122 | + resp = Flask.response_class("<h1>hello</h1>", mimetype="text/plain") |
| 123 | + return resp |
| 124 | + |
| 125 | + |
| 126 | +@app.route("/content-type/app-response-class") |
| 127 | +def app_response_class(): |
| 128 | + # note: app.response_class (flask.Flask.response_class) is set to `flask.Response` by default. |
| 129 | + # it can be overridden, but we don't try to handle that right now. |
| 130 | + resp = app.response_class("<h1>hello</h1>", mimetype="text/plain") |
| 131 | + return resp |
| 132 | + |
| 133 | +# TODO: add tests for setting status code |
| 134 | +# TODO: add test that manually creates a redirect by setting status code and suitable header. |
| 135 | + |
| 136 | +################################################################################ |
| 137 | + |
| 138 | + |
| 139 | +if __name__ == "__main__": |
| 140 | + app.run(debug=True) |
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