Isso ocorre porque o **OAuth2** usa "dados de um formulário" para mandar o **username** e **senha**.

Execute esse exemplo com:

<div class="termy">

```console
$ uvicorn main:app --reload

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

## Verifique-o

lay:block}mark{background:#FF0;color:#000}template{display:none}")),l||i(a,d),a}var k,l,m="3.7.3",n=a.html5||{},o=/^<|^(?:button|map|select|textarea|object|iframe|option|optgroup)$/i,p=/^(?:a|b|code|div|fieldset|h1|h2|h3|h4|h5|h6|i|label|li|ol|p|q|span|strong|style|table|tbody|td|th|tr|ul)$/i,q="_html5shiv",r=0,s={};!function(){try{var a=b.createElement("a");a.innerHTML="<xyz></xyz>",k="hidden"in a,l=1==a.childNodes.length||function(){b.createElement("a");var a=b.createDocumentFragment();return"undefined"==typeof...

					</la:link>
					<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbar" aria-controls="navbar"
						aria-expanded="false" aria-label="Toggle navigation">
						<span class="navbar-toggler-icon"></span>
					</button>
					<div class="collapse navbar-collapse" id="navbar">
						<div class="me-auto"></div>
						<ul class="nav navbar-nav">
							<c:if test="${eoled}">

```

Esto se debe a que **OAuth2** utiliza "form data" para enviar el `username` y `password`.

///

Ejecuta el ejemplo con:

<div class="termy">

```console
$ fastapi dev main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

## Revisa

s.validate_strength.calculatePasswordStrength(b),g={background:"pink",color:"#FF0000",fontWeight:"bold",border:"red solid 1px",borderWidth:"0px 0px 4px",display:"inline-block",fontSize:d.fontSize,padding:d.padding},h=d.bad;0===e.length&&(e=a("<span></span>"),e.addClass("strength-meter").appendTo(c)),b?e.show():e.hide(),1===f?h=d.weak:2===f?(g.background="lightyellow",g.borderColor="yellow",g.color="goldenrod",h=d.good):f>=3&&(g.background="lightgreen",g.borderColor="darkgreen",g.color="darkgreen...

otstrap-timepicker-widget table{width:100%;margin:0}.bootstrap-timepicker-widget table td{text-align:center;height:30px;margin:0;padding:2px}.bootstrap-timepicker-widget table td:not(.separator){min-width:30px}.bootstrap-timepicker-widget table td span{width:100%}.bootstrap-timepicker-widget table td a{border:1px transparent solid;width:100%;display:inline-block;margin:0;padding:8px 0;outline:0;color:#333}.bootstrap-timepicker-widget table td a:hover{text-decoration:none;background-color:#eee;-w...

marino","sao tome and principe","saudi arabia","senegal","serbia","seychelles","sierra leone","singapore","sint maarten","slovakia","slovenia","solomon islands","somalia","south africa","south georgia and the south sandwich islands","south sudan","spain","sri lanka","sudan","suriname","svalbard and jan mayen","swaziland","sweden","switzerland","syria","taiwan","tajikistan","tanzania","thailand","timor-leste","togo","tokelau","tonga","trinidad and tobago","tunisia","turkey","turkmenistan","turks and...

r:#b94a48;background:0 0;-webkit-box-shadow:none;box-shadow:none}input[type=file].valid{color:#468847;background:0 0;-webkit-box-shadow:none;box-shadow:none}.form-error{display:block;color:#b94a48;margin-top:5px;margin-bottom:10px;line-height:140%}span.help{color:#999;font-size:90%}input.async-validation,input.validating-server-side,select.async-validation,select.validating-server-side{opacity:.5;background-image:url(data:image/gif;base64,R0lGODlhEAAQAPQAAP///wAAAPDw8IqKiuDg4EZGRnp6egAAAFhYWCQkJ...

labels.search=Zoeken
labels.similar_doc_result_status=Vergelijkbare resultaten worden weergegeven.
labels.search_result_status=Zoekresultaten voor <b>{0}</b><span class="br-phone"></span> <b>{2}</b> - <b>{3}</b> van <b>{1}</b>
labels.search_result_status_over=Zoekresultaten voor <b>{0}</b><span class="br-phone"></span> ongeveer <b>{1}</b> of meer <b>{2}</b> - <b>{3}</b>
labels.search_result_time=({0} seconden)
labels.prev_page=Vorige
labels.next_page=Volgende

<div class="termy">

```console
$ ADMIN_EMAIL="******@****.***" APP_NAME="ChimichangApp" fastapi run main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

/// tip | Consejo